A pass from Miami quarterback Ryan Tannehill fell incomplete near the right sideline, while Keller immediately fell downward and was soon carted off the field.

“I mean, I felt bad but at the same time it’s part of the game,” said Swearinger, who dove into Keller’s right knee. “It’s playing within the rules. So I felt a little grief for him. But, at the same time, it’s football.”

Several Dolphins players said postgame they didn’t think the hit was dirty.

“We’re all playing football out there,” Miami tight end Michael Egnew said. “Sometimes hits are low; sometimes they’re high. Unfortunately his was a low one and we just have to deal with it.”

Miami head coach Joe Philbin was reluctant to discuss the hit.

“I didn’t really watch the tape,” he said. “Again, I am not going to comment on how the Houston Texans tackle. I coach the Dolphins.”

Updated (12:38 p.m.): Keller tore his ACL, MCL and PCL and dislocated his knee, according to ESPN’s Adam Schefter.

Dolphins TE Dustin Keller tore his ACL, MCL, PCL and, as if that weren’t enough, dislocated his knee, per source.